<template>
  <view>
    <!-- 最外层的容器 -->
    <view class="my-settle-container">
      <!-- 全选区域 -->
      <label class="radio" @click="changeAllState">
        <radio color="#C00000" :checked="isFllCheck"/><text>全选</text>
      </label>
      <!-- 合计区域 -->
      <view class="amount-box" >
        合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
      </view>
      <!-- 结算区域 -->
      <view class="btn-settle">结算({{checkedCount}})</view>
    </view>
  </view>
</template>

<script>
  import { mapGetters,mapMutations } from 'vuex'
  export default {
    name:"my-settle",
    data() {
      return {
        
      };
    },
    computed: {
      ...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
      
      // 是否全选
      isFllCheck () {
          return this.total === this.checkedCount
      }
    },
    methods: {
      ...mapMutations('m_cart',['updateAllGoodsState']),
      // label 的点击事件处理函数
      changeAllState () {
        // 修改购物车所有商品的选中状态
        // !this.isFullCheck 表示：当前全选按钮的状态取反之后，就是最新的勾选状态
        this.updateAllGoodsState(!this.isFllCheck)
      }
    }
  }
</script>

<style lang="scss">
  .my-settle-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    // 底部固定定位
    position: fixed;
    bottom: 0;
    left: 0;
    // 设置宽高和背景颜色
    padding-left: 5px;
    font-size: 14px;
    width: 100%;
    height: 50px;
    background-color: white;
    
    .radio {
      display: flex;
      align-items: center;
    }
    
    .amount {
      color: #C00000;
    }
    
    .btn-settle {
      padding: 0 10px;
      min-width: 100px;
      height: 50px;
      color: white;
      background-color: #C00000;
      line-height: 50px;
      text-align: center;
    }
  }
</style>